They said they were the Royal Flying doctors, asked if I had a few minutes to talk, I said no sorry, they said “Really??? You don’t have a few minutes” in a rude tone and hung up on me. Not sure the real flying doctors would speak to people like that and hang up. Usually charities ask if you are free to call another time or at least are polite so they don’t piss you off because you still might donate one day. Unsure if this was a scammer or not.